Page file size on machines with large amounts of memory

There is a rule of thumb that page file size (and swap space partition) should be 1.5 times the physical memory of the machine. Now that we have 64 bit machines with 16-64GB of memory this looks like an absurd.

• We do not want to reserve so much disk space
• It does not make sense to rely so heavily on disk 

I found two nice references in the internet regarding Linux and Windows

http://www.cyberciti.biz/tips/linux-swap-space.html
http://support.microsoft.com/kb/889654

So my new rule of thumb page file should not be more than 70% full

Paging File\\% Usage Peak _Total < 70%